A lifting device for processing automobile assembly parts

Abstract

The application discloses a lifting appliance for automobile assembly part machining, which comprises a lifting frame, a supporting piece, a driving piece, a baffle and a limiting assembly. The supporting piece is installed below the lifting frame through a lifting rod, and the supporting piece is provided with a supporting area for matching the assembly part. The driving piece is vertically and elastically slidably installed on the supporting area. The baffle is movably installed on the supporting piece and is matched with the driving piece through a transmission structure. The limiting assembly is arranged on the supporting piece and is matched with the baffle. The application has the beneficial effects that: when hoisting, the driving piece moves downward under the gravity of the assembly part and drives the baffle to move through the transmission structure, so that the baffle is locked with the limiting assembly, and the baffle is matched with the supporting area to limit the assembly part in the vertical direction, so that the assembly part is not prone to shaking or displacement, and the safety is improved. Moreover, the baffle is automatically limited and locked under the gravity of the assembly part, and manual operation is not needed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile assembly, in particular to a lifting appliance for automobile assembly parts. BACKGROUND

[0002] In the processing of automobile assembly parts, a lifting appliance is generally used, which is usually used in combination with hoisting equipment; for example, in the welding and assembly process of automobile beam bodies and body frames, a lifting appliance is needed to load and unload the assembly parts.

[0003] In the prior art, as shown in Figure 1 and Figure 2 , the four supporting points of the assembly part are supported by the lifting appliance, which can well limit the left and right directions of the assembly part. However, the weight of the assembly part is not evenly distributed, so the up and down movement during hoisting can easily cause the assembly part to shift or even fall. Therefore, how to improve the existing lifting appliance to overcome the above problems is a problem that needs to be solved by those skilled in the art. SUMMARY

[0004] One of the purposes of the present application is to provide a lifting appliance for automobile assembly part processing with good stability.

[0005] To achieve the above purposes, the technical scheme adopted by the present application is as follows: a lifting appliance for automobile assembly part processing, comprising a lifting frame, a supporting part, a driving part, a baffle and a limiting assembly, the supporting part is installed below the lifting frame through a lifting rod, and the supporting part has a supporting area for cooperating with the assembly part, the driving part is vertically and elastically slidably installed in the supporting area, the baffle is movably installed on the supporting part and cooperates with the driving part through a transmission structure, and the limiting assembly is arranged on the supporting part and cooperates with the baffle; during hoisting and installation, the assembly part in the supporting area is adapted to press the driving part downward, and then the transmission structure is driven to move the baffle towards the supporting area and cooperate with the limiting assembly, so that the baffle is in a locked state and limits the assembly part in the vertical direction.

[0006] Preferably, the baffle is horizontally and elastically rotatably installed on the supporting part above the supporting area through a rotating shaft, and the rotating shaft cooperates with the driving part through the transmission structure; after hoisting and installation, the transmission structure is in a disengaged state, at which time the driving part is adapted to buffer the impact force of the assembly part through the elastic force; during hoisting and disassembly, the limiting assembly is adapted to first unlock the baffle, so that the baffle rotates away from the supporting area under the action of the elastic force; then, the assembly part is separated from the driving part, and then the driving part is lifted and reset under the action of the elastic force, and the transmission structure is in an initial cooperation state.

[0007] Preferably, the transmission structure comprises a rotating roller and a transmission block, the rotating roller is installed on the rotating shaft and externally provided with a spiral transmission groove, the transmission block is elastically and slidingly installed on the driving member and cooperates with the transmission groove; during hoisting installation, the driving member is adapted to drive the baffle to rotate towards the supporting area through cooperation of the transmission block and the transmission groove; after hoisting installation, the transmission block is adapted to disengage from the transmission groove, and the baffle is adapted to be locked under the action of the limiting assembly; after hoisting removal, the transmission block is adapted to be lifted under the driving of the driving member and until cooperation with the starting end of the transmission groove.

[0008] Preferably, the rotating roller is externally provided with a vertical groove cooperating with the starting end of the transmission groove, and the depth of the vertical groove is less than the depth of the transmission groove; after hoisting removal, the transmission block is adapted to be vertically lifted along the vertical groove and until clamped into the transmission groove.

[0009] Preferably, the limiting assembly comprises a limiting block in a wedge structure, the limiting block is vertically and elastically slidingly arranged on the side of the supporting member, and the baffle is provided with a limiting groove; during locking of the baffle, the limiting block is adapted to be wedged and extruded with the rotating baffle and then lifted under the action of the elastic force until cooperation with the limiting groove.

[0010] Preferably, the hoisting rod comprises an outer cylinder and an inner rod, the outer cylinder is horizontally slidingly arranged on the hanger through the top end and cooperates with the hanger through limiting structure one for locking; the inner rod is vertically slidingly arranged in the outer cylinder and cooperates with the outer cylinder through limiting structure two for locking, and the supporting member is installed on the lower end of the inner rod; the lower end of the inner rod is provided with an operating handle, the inner part of the hoisting rod is provided with a transmission device, the input end of the transmission device is connected with the operating handle, and the output end of the transmission device is unidirectionally connected with the limiting structure one and the limiting structure two for transmission; when the operating handle performs a first action, the limiting structure one is adapted to be unlocked from the hanger under the driving of the transmission device, and the limiting structure two remains in the locked state at this time; when the operating handle performs a second action, the limiting structure two is adapted to be unlocked from the outer cylinder under the driving of the transmission device, and the limiting structure one remains in the locked state at this time.

[0011] Preferably, the transmission device comprises an upper rotating rod, a lower rotating rod, a transmission assembly one and a transmission assembly two, the upper rotating rod is rotatably installed in the outer cylinder and is connected to the limiting structure one at the top end through the transmission assembly one in a one-way matching mode, the lower rotating rod is rotatably installed in the inner rod and is connected to the operating handle at the bottom end, the middle part of the lower rotating rod is connected to the limiting structure two through the transmission assembly two in a one-way matching mode, and the bottom end of the upper rotating rod is connected to the top end of the lower rotating rod through a spline connection; when the operating handle is rotated in a first direction, the upper rotating rod is adapted to drive the limiting structure one to release the locking of the outer cylinder through the transmission assembly one; when the operating handle is rotated in a second direction, the lower rotating rod is adapted to drive the limiting structure two to release the locking of the inner rod through the transmission assembly two.

[0012] Preferably, the limiting structure one comprises a clamping block one and a plurality of clamping grooves one arranged at the bottom end of the hanger, and the clamping block one is vertically and elastically slidably arranged at the top end of the outer cylinder; the transmission assembly one comprises a transmission cylinder and a guide block, the guide block is installed at the lower end of the clamping block one, the transmission cylinder is installed at the top end of the upper rotating rod and is internally provided with a guide groove matched with the guide block, and the guide groove comprises a horizontal segment and a spiral segment which are connected in communication; when the operating handle is rotated in a first direction, the spiral segment is matched with the guide block to drive the clamping block one to move downward and separate from the clamping groove one, so as to release the locking of the outer cylinder; when the operating handle is rotated in a second direction, the horizontal segment is matched with the guide block, and then the clamping block one is reset and kept stationary.

[0013] Preferably, the limiting structure two comprises a clamping block two and a plurality of clamping grooves two arranged on the inner side wall of the outer cylinder, and the clamping block two is horizontally and elastically slidably installed at the top end of the inner rod; the transmission assembly two comprises a transmission disc and a transmission rod, the outer part of the transmission disc is provided with an arc-shaped groove, the transmission rod is installed at the clamping block two and is matched with the arc-shaped groove, the middle part of the transmission disc is provided with a sleeve hole matched with the lower rotating rod, the sleeve hole is provided with a groove body in a circumferential direction, and the outer part of the lower rotating rod is provided with a driving block matched with the groove body; when the operating handle is rotated in a second direction, the driving block abuts against the end part of the groove body to drive the transmission disc to rotate synchronously, and then the arc-shaped groove is matched with the transmission rod to pull the clamping block two to move and separate from the clamping groove two, so as to release the locking of the inner rod; when the operating handle is rotated in a first direction, the driving block moves along the extension direction of the groove body, and then the clamping block two is reset and kept stationary.

[0014] Preferably, the inner rod is connected with the outer cylinder through elastic piece one; when the inner rod is unlocked, the inner rod is suitable for vertical adjustment in cooperation with the elastic piece one; the operating handle is connected with the inner rod through elastic piece two, and the operating handle is suitable for restoring and maintaining the initial state under the action of the elastic piece two after adjustment, so that the limiting structure one and the limiting structure two are kept in the locked state.

[0015] Compared with the prior art, the application has the beneficial effects that:

[0016] The driving piece, the transmission structure, the baffle and the limiting assembly are arranged on the supporting piece of the lifting appliance, when hoisting, the driving piece is lowered under the gravity of the assembly and drives the baffle to move through the transmission structure, so that the baffle is locked in cooperation with the limiting assembly, and the baffle cooperates with the supporting area to limit the assembly in the vertical direction, so that the assembly is stably hoisted and is not easy to shake or shift, and the safety is further improved; and the baffle is automatically limited and locked under the gravity of the assembly, without manual operation, so that the forgetting of the staff is prevented, and the safety is further ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the existing lifting appliance structure.

[0018] Figure 2 It is a schematic view of the partial structure of the lifting appliance. Figure 1

[0019] Figure 3 It is a schematic view of the overall structure of the lifting appliance.

[0020] Figure 4 It is a schematic view of the lifting appliance when hoisting the assembly.

[0021] Figure 5 It is a schematic view of the partial structure in the lifting appliance. Figure 4

[0022] Figure 6 It is a schematic view of the initial state of the supporting piece.

[0023] Figure 7 It is a schematic view of the cooperation of the supporting piece and the assembly.

[0024] Figure 8 It is a schematic view of the transmission structure.

[0025] Figure 9 It is a schematic view of the limiting assembly.

[0026] Figure 10 ​​The schematic diagram of the working principle of the left and right and up and down adjustment of the boom of the application.

[0027] Figure 11 The schematic diagram of the working principle of the left and right and up and down adjustment of the boom of the application. Figure 10 The schematic diagram of the working principle of the left and right and up and down adjustment of the boom of the application.

[0028] Figure 12 The schematic diagram of the working principle of the left and right and up and down adjustment of the boom of the application.

[0029] Figure 13 The schematic diagram of the working principle of the left and right and up and down adjustment of the boom of the application.

[0030] Figure 14 The schematic diagram of the working principle of the left and right and up and down adjustment of the boom of the application.

[0031] Figure 15 The schematic diagram of the working principle of the left and right and up and down adjustment of the boom of the application.

[0032] Figure 16 The schematic diagram of the working principle of the left and right and up and down adjustment of the boom of the application.

[0033] Figure 17 The schematic diagram of the working principle of the left and right and up and down adjustment of the boom of the application.

[0034] Figure 18 The schematic diagram of the working principle of the left and right and up and down adjustment of the boom of the application.

[0035] In the figure: 1, hanger; 2, boom; 201, outer cylinder; 202, inner rod; 3, supporting piece; 301, support area; 302, positioning column; 4, assembling piece; 5, driving piece; 6, baffle; 7, limiting assembly; 701, limiting block; 702, pushing block; 8, operating handle; 9, transmission structure; 901, rotating roller; 902, transmission block; 10, transmission groove; 11, vertical groove; 12, limiting groove; 13, elastic piece one; 14, transmission device; 1401, upper rotating rod; 1402, lower rotating rod; 1403, transmission assembly one; 14031, transmission cylinder; 14032, guide block; 1404, transmission assembly two; 14041, transmission disc; 14042, transmission rod; 15, limiting structure one; 1501, clamping block one; 1502, clamping groove one; 16, limiting structure two; 1601, clamping block two; 1602, clamping groove two; 17, arc-shaped groove; 18, sleeve hole; 19, groove body; 20, driving block; 21, guide groove; 2101, horizontal section; 2102, spiral section; 22, elastic piece two. DETAILED DESCRIPTION

[0036] In the following, the application will be further described in conjunction with specific embodiments, and it should be noted that the embodiments described below or the technical features thereof can be combined in any manner to form new embodiments without conflict.

[0037] In the description of the present application, it should be noted that for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0039] One preferred embodiment of the present application is shown in Figures 1 to 18 A lifting appliance for processing automobile assembly parts, comprising a lifting frame 1, a supporting piece 3, a driving piece 5, a baffle 6 and a limiting assembly 7, the supporting piece 3 is installed below the lifting frame 1 through a lifting rod 2, and the supporting piece 3 has a supporting area 301 cooperating with the assembly part 4, the driving piece 5 can be vertically elastically slidably installed in the supporting area 301 through a spring, the baffle 6 is movably installed on the supporting piece 3 and cooperates with the driving piece 5 through a transmission structure 9, and the limiting assembly 7 is arranged on the supporting piece 3 and cooperates with the baffle 6.

[0040] It can be understood that when the assembly part 4 is hoisted and installed, the supporting piece 3 is first moved to a position below the assembly part 4, and then lifted upward, so that the supporting area 301 on the supporting piece 3 corresponds and cooperates with the supporting position on the assembly part 4, at this time the driving piece 5 is pressed downward under the action of the gravity of the assembly part 4, the assembly part 4 drives the baffle 6 to move through the transmission structure 9, so that the baffle 6 moves towards the supporting area 301 and cooperates with the limiting assembly 7, so that the baffle 6 is locked by the limiting assembly 7, and the baffle 6 can limit the vertical direction of the assembly part 4, so that the assembly part 4 is stably hoisted and is not easy to shake or shift.

[0041] Similarly, when hoisting and disassembling, the limiting of the baffle 6 by the limiting assembly 7 is first released, and then the supporting piece 3 is moved downward, at this time the driving piece 5 moves upward under the action of the spring, and then the baffle 6 moves away from the supporting area 301 through the action of the transmission structure 9, so that the lifting appliance and the assembly part 4 are separated.

[0042] As a further description of the above embodiment: as Figure 7As shown in the figure, the baffle 6 is horizontally rotatably installed at the top end of the supporting member 3 and above the supporting area 301. As shown in the figure, Figure 8 As shown in the figure, the transmission structure 9 includes a rotating roller 901 and a transmission block 902, the rotating roller 901 is installed on the rotating shaft and externally provided with a spiral transmission groove 10, the transmission block 902 is installed on the driving member 5 and cooperates with the transmission groove 10. As shown in the figure, Figure 9 As shown in the figure, the limiting assembly 7 includes a limiting block 701 and a pushing block 702, the limiting block 701 is in a wedge structure (for example, a right triangle structure), the pushing block 702 is installed at the bottom end of the limiting block 701, the limiting block 701 can be vertically slidably arranged on the side of the supporting member 3, and the baffle 6 is provided with a limiting groove 12.

[0043] It can be understood that, in the initial state, as shown in the figure, Figure 6 The baffle 6 is perpendicular to the supporting member 3, and the two are in a misaligned and separated state, and the driving member 5 is located at the upper position under the action of the elastic force. In the hoisting installation, as shown in the figure, Figure 7 The driving member 5 is moved downward under the action of the gravity of the assembled part 4, the transmission block 902 that moves downward cooperates with the spiral transmission groove 10, so that the baffle 6 is rotated towards the direction of the supporting area 301, when the baffle 6 is rotated to the position of extruding and cooperating with the inclined surface at the top end of the limiting block 701, the limiting block 701 will move downward and compress the spring, when the limiting groove 12 is continued to be rotated to correspond to the limiting block 701, at this time, the limiting block 701 will be clamped into the limiting groove 12 under the action of the elastic force, thereby locking the baffle 6, so that the assembled part 4 is limited in the supporting area 301, thereby realizing the limiting of the assembled part 4 in the vertical direction and improving the hoisting stability.

[0044] Based on the above embodiment, the following problems may exist in use: in the hoisting and dismounting, the limiting block 701 needs to be driven to move downward by the pushing block 702, thereby releasing the limiting of the baffle 6, and in this process, the hand needs to keep the downward movement of the limiting block 701, then the supporting member 3 is moved downward, the driving member 5 is moved upward under the action of the elastic force to cooperate with the transmission structure 9, so that the baffle 6 is rotated to reset, when the limiting block 701 is misaligned and separated from the limiting groove 12, the pushing block 702 can be released, thereby the unlocking of the baffle 6 is more troublesome.

[0045] Therefore, in order to solve the above technical problems, as shown in the figure, Figure 8 The baffle 6 and the supporting member 3 can be connected by a torsion spring, and the transmission block 902 can be elastically slidably installed on the side of the driving member 5 by a spring. It can be understood that, after hoisting and installation, as shown in the figure, Figure 7As shown, the driving member 5 will be lowered and separated from the rotating roller 901, that is, the transmission block 902 will slide out of the bottom end of the transmission groove 10 to disengage, at which time the transmission structure 9 is in a disengaged state; that is, the baffle 6 and the driving member 5 are independent of each other, and at this time the driving member 5 can also buffer the impact force when the assembly 4 is hoisted under the action of the spring. Of course, the driving member 5 can also be connected with the support member 3 through a (small) damper, which can have a shock-absorbing effect on the assembly 4 under the action of the spring. In addition, during hoisting and dismounting, only the push block 702 needs to be lowered to drive the limiting block 701 to separate from the limiting groove 12, at which time the baffle 6 will be reversed to the initial state under the action of the elastic force, thereby immediately releasing the limiting of the assembly 4 in the vertical direction; when the driving member 5 is raised under the action of the elastic force, the transmission block 902 will be retracted under the extrusion of the rotating roller 901, and when it is raised to the starting end (point a in the transmission groove 10) of the transmission groove 10, the transmission block 902 will be ejected under the action of the elastic force and continue to cooperate with the transmission groove 10. Figure 8

[0046] Further, as shown in Figure 8 , a vertical groove 11 cooperating with the starting end of the transmission groove 10 is arranged outside the rotating roller 901, and the depth of the vertical groove 11 is less than that of the transmission groove 10. Due to the action of the vertical groove 11, firstly, a guiding effect can be achieved on the transmission block 902; secondly, the compression retraction amount of the transmission block 902 can be reduced, thereby reducing the friction between the transmission block 902 and the rotating roller 901 when it is raised, so that the transmission block 902 can enter the transmission groove 10 more smoothly. Moreover, since there is a depth difference between the vertical groove 11 and the transmission groove 10, during the subsequent lowering process, the transmission block 902 will not be lowered along the vertical groove 11, but will be moved cooperatively along the transmission groove 10.

[0047] In summary, through the above design, the baffle 6 can be automatically rotated under the action of the gravity of the assembly 4 and locked by the limiting assembly 7; moreover, the locked baffle 6 and the driving member 5 are in a mutually independent state, which is convenient for quick unlocking of the baffle 6, and the driving member 5 can also have a shock-absorbing effect. During the entire operation of the baffle 6, the worker only needs to unlock the baffle 6 through the push block 702 during hoisting and dismounting, which is simple and fast.

[0048] ​It should be noted that as a person skilled in the art in the design of the lifting appliance, the baffle 6 can also be provided for limiting the vertical direction during lifting, and the baffle 6 needs to be rotated and separated by manual operation, and the lifting appliance generally adopts multi-point lifting, so it is necessary to operate multiple baffles 6, which can easily cause fatigue of the workers, and thus cause forgetting or intentionally not limiting, which can cause safety hazards. In the design, the gravity of the assembly part 4 is used to automatically rotate the baffle 6, which greatly reduces the operation steps of the workers and further ensures the safety.

[0049] In the prior art, as shown in Figure 1 and Figure 2 , the lifting frame 1 adopts a rectangular structure and four-point lifting, in order to facilitate flexible adjustment and disassembly, the lifting rod 2 includes an outer cylinder 201 and an inner rod 202, the outer cylinder 201 is slidingly arranged at the top end of the lifting frame 1, and the inner rod 202 is vertically slidingly arranged in the outer cylinder 201; that is, the lifting rod 2 can move left and right and be adjusted up and down, and after being adjusted to the appropriate position, the lifting rod 2 is generally locked and limited by limiting bolts. For example, after the lifting rod 2 is adjusted left and right, the limiting bolts at the top end of the outer cylinder 201 are tightened to lock; after the inner rod 202 is adjusted up and down, the limiting bolts at the lower end of the outer cylinder 201 are tightened to lock. Since the positions of the two limiting bolts are distributed up and down, the adjustment is relatively cumbersome, time-consuming and laborious, and the work efficiency is low.

[0050] Therefore, in order to solve the above technical problems, as shown in Figures 10 to 12 , the outer cylinder 201 and the lifting frame 1 are locked by limiting structure one 15, the inner rod 202 and the outer cylinder 201 are locked by limiting structure two 16, the supporting part 3 is installed at the lower end of the inner rod 202, the lower end of the inner rod 202 is provided with an operating handle 8, the inside of the lifting rod 2 is provided with a transmission device 14, the input end of the transmission device 14 is connected with the operating handle 8, and the output end of the transmission device 14 is connected with the limiting structure one 15 and the limiting structure two 16 in one-way transmission connection.

[0051] It can be understood that when the operating handle 8 performs a first action, the limiting structure one 15 can be unlocked from the lifting frame 1 under the drive of the transmission device 14, that is, the supporting part 3 can be adjusted in the left and right directions, and at this time the limiting structure two 16 remains in the locked state. The limiting structure one 15 can be unlocked from the lifting frame 1 under the drive of the transmission device 14, that is, the supporting part 3 can be adjusted in the up and down directions, and at this time the limiting structure two 16 remains in the locked state. As can be seen, by performing different actions on the operating handle 8, the two limiting structures can be unlocked, and thus flexible adjustment can be achieved, greatly improving the efficiency of adjustment.

[0052] As shown in Figure 12As shown, the transmission device 14 comprises an upper rotating rod 1401, a lower rotating rod 1402, a transmission assembly one 1403 and a transmission assembly two 1404. The upper rotating rod 1401 is rotatably installed in the outer cylinder 201 and has a top end which is connected to the limiting structure one 15 through the transmission assembly one 1403 in a one-way matching manner. The lower rotating rod 1402 is rotatably installed in the inner rod 202 and has a bottom end which is connected to the operating handle 8. The middle part of the lower rotating rod 1402 is connected to the limiting structure two 16 through the transmission assembly two 1404 in a one-way matching manner. The bottom end of the upper rotating rod 1401 is connected to the top end of the lower rotating rod 1402 through a spline, i.e. the upper rotating rod 1401 and the lower rotating rod 1402 can slide relative to each other and can rotate synchronously.

[0053] It can be understood that when the operating handle 8 rotates in a first direction, the upper rotating rod 1401 can drive the limiting structure one 15 to release the locking of the outer cylinder 201 through the transmission assembly one 1403, so as to adjust the left and right directions. When the operating handle 8 rotates in a second direction, the lower rotating rod 1402 can drive the limiting structure two 16 to release the locking of the inner rod 202 through the transmission assembly two 1404, so as to adjust the up and down directions.

[0054] Specifically, as shown in Figure 13 and Figure 18 The limiting structure one 15 comprises a clamping block one 1501 and a plurality of clamping grooves one 1502 which are arranged at the bottom end of the hanger 1. The clamping block one 1501 is arranged at the top end of the outer cylinder 201 in a vertical elastic manner through a spring. The transmission assembly one 1403 comprises a transmission cylinder 14031 and a guide block 14032. The guide block 14032 is installed at the lower end of the clamping block one 1501. The transmission cylinder 14031 is installed at the top end of the upper rotating rod 1401 and has a guide groove 21 inside which matches the guide block 14032. The guide groove 21 comprises a horizontal segment 2101 and a spiral segment 2102 which are connected.

[0055] It can be understood that in a normal initial state, the clamping block one 1501 is in a clamping matching state with one of the clamping grooves one 1502 under the action of the elastic force, i.e. at this time, the limiting structure one 15 locks the hanger 2 in the horizontal left and right directions. When adjusting, as shown in Figure 17 the operating handle 8 is rotated counterclockwise in a first direction. At this time, the spiral segment 2102 matches the guide block 14032, so as to make the clamping block one 1501 move downward and separate from the clamping groove one 1502, so as to release the locking of the outer cylinder 201. The hanger 2 can be adjusted in the left and right directions. When the operating handle 8 is rotated clockwise in a second direction, the horizontal segment 2101 matches the guide block 14032. At this time, the clamping block one 1501 is reset and kept in a static state under the action of the elastic force.

[0056] As shown in Figures 14 to 16As shown, the limiting structure 2 16 includes a locking block 2 1601 and multiple locking grooves 2 1602 spaced apart on the inner sidewall of the outer cylinder 201. The locking block 2 1601 is horizontally slidably mounted on the top of the inner rod 202 by a spring. The transmission assembly 2 1404 includes a transmission disk 14041 and a transmission rod 14042. The outer side of the transmission disk 14041 is provided with an arc-shaped groove 17. The transmission rod 14042 is mounted on the locking block 2 1601 and cooperates with the arc-shaped groove 17. The middle part of the transmission disk 14041 is provided with a sleeve hole 18 that cooperates with the lower rotating rod 1402. The sleeve hole 18 is provided with a groove 19 along the circumferential direction. The outer side of the lower rotating rod 1402 is provided with a drive block 20 that cooperates with the groove 19.

[0057] Understandably, in the normal initial state, the second locking block 1601 is engaged with one of the second locking slots 1602 under the action of elastic force, meaning that the limiting structure 16 locks the inner rod 202 vertically. During adjustment, if... Figure 15 As shown, when the operating handle 8 is rotated clockwise in the second direction, the drive block 20 abuts against the end of the groove 19, driving the transmission disc 14041 to rotate synchronously. The arc-shaped groove 17 on the transmission disc 14041 cooperates with the transmission rod 14042 to pull the second locking block 1601 to move and separate it from the second locking groove 1602, thereby releasing the lock on the inner rod 202, which can then be adjusted up and down. When the operating handle 8 is rotated counterclockwise in the first direction, the drive block 20 will move along the extension direction of the groove 19, and the second locking block 1601 will reset and remain stationary under the action of the elastic force.

[0058] It should be known that, as Figure 16 and Figure 18 As shown, the groove 19 on the transmission disc 14041 and the horizontal section 2101 on the transmission cylinder 14031 are designed for unidirectional transmission with the corresponding rotating rods. For example, when the lower rotating rod 1402 rotates clockwise from its initial position, it drives the transmission disc 14041 to rotate synchronously via the drive block 20. At this time, the horizontal section 2101 engages with the guide block 14032, and the guide block 14032 is stationary. When the upper rotating rod 1401 rotates counterclockwise from its initial position, the spiral section 2102 engages with the guide block 14032, thereby driving the locking block 1501 to move downward. At this time, the drive block 20 moves along the extension direction of the groove 19, and the transmission disc 14041 is stationary.

[0059] Furthermore, such as Figure 10As shown, the inner rod 202 and the outer cylinder 201 can be connected through the elastic member one 13 (for example, a tension spring or a spring). It should be known that when the inner rod 202 is unlocked, the inner rod 202 will be lowered under the action of gravity, that is, the inner rod 202 needs to be supported during adjustment, and due to the elastic effect of the elastic member one 13, the inner rod 202 can have an upward supporting force, so that it is more convenient and labor-saving during adjustment.

[0060] As shown in Figure 11 and Figure 12 , the operating handle 8 and the inner rod 202 can be connected through the elastic member two 22 (for example, a spring). The purpose is that after the operating handle 8 is rotated to unlock the corresponding limiting structure, the operating handle 8 can recover and maintain the initial state under the action of the elastic member two 22, and at this time the limiting structure one 15 and the limiting structure two 16 are kept in the locked state.

[0061] The working principle of the present application is:

[0062] Taking the four-point support structure of the lifting appliance as an example, in the initial state, for the supporting member 3: as shown in Figure 6 , the baffle 6 is in a dislocation separation state with the supporting area 301 under the action of the torsional spring elastic force, and the baffle 6 is perpendicular to the supporting member 3. For the suspender 2: the clamping block one 1501 cooperates with one of the clamping grooves one 1502, and the clamping block two 1601 cooperates with one of the clamping grooves two 1602, at this time the suspender 2 is in the locked state; as shown in Figure 15 and Figure 17 , the operating handle 8 is horizontally perpendicular to the side position of the suspender 2.

[0063] When installing the assembly 4, first lower the lifting appliance to the appropriate position through the lifting device, and then adjust the four supporting members 3. For example: the worker can hold the operating handle 8, as shown in Figure 17 , first rotate the operating handle 8 counterclockwise by a certain angle, at this time the spiral segment 2102 cooperates with the guide block 14032, so that the clamping block one 1501 can be lowered and separated from the clamping groove one 1502 to unlock the outer cylinder 201, so that the outer cylinder 201 can be adjusted in the left and right directions along the crossbeam of the lifting frame 1, so that the supporting member 3 is away from the assembly 4 and is dislocated, which is preparation for the subsequent downward adjustment of the supporting member 3; after adjustment, the operating handle 8 is reversed to the initial position, at this time the clamping block one 1501 cooperates with the nearest clamping groove one 1502 under the action of the elastic force, so that the adjusted outer cylinder 201 is locked again. As shown in Figure 6As shown, the operation handle 8 is then rotated clockwise by a certain angle, at which time the driving block 20 abuts against the end of the groove 19 to drive the transmission disc 14041 to rotate synchronously, the arc-shaped groove 17 on the transmission disc 14041 cooperates with the transmission rod 14042 to move the clamping block two 1601 and separate it from the clamping groove two 1602, so as to release the locking of the inner rod 202, and the inner rod 202 can be moved along the outer cylinder 201 to adjust the support piece 3 up and down. After adjustment, the operation handle 8 is reversed to the initial position, at which time the clamping block two 1601 cooperates with the nearest clamping groove two 1602 under the action of the elastic force, so that the adjusted inner rod 202 is locked again. Similarly, through the above operation for multiple times, the positioning column 302 at the top of the support piece 3 cooperates with the positioning hole carried by the assembly 4, and the support piece 3 supports the bottom of the assembly 4 at a suitable position. It should be noted that the operation handle 8 can also serve as a force point for adjusting the hanger 2 after unlocking the corresponding limiting structure, that is, the staff can hold the operation handle 8 to adjust it up and down or left and right until the support piece 3 is adjusted to a suitable position.

[0064] When hoisting, the gravity of the assembly 4 can make the driving piece 5 on the support piece 3 move downward, the transmission block 902 moves downward to cooperate with the spiral transmission groove 10, so that the baffle 6 rotates towards the support area 301, and when the baffle 6 is pressed and cooperates with the slope at the top of the limiting block 701, the limiting block 701 moves downward and compresses the spring. When the limiting groove 12 corresponds to the limiting block 701, the limiting block 701 is clamped into the limiting groove 12 under the action of the elastic force, thereby locking the baffle 6. At this time, the baffle 6 encloses the support position of the assembly 4 in the support area 301, thereby limiting the vertical direction of the assembly 4, and the baffle 6 and the driving piece 5 are independent of each other. Of course, the downward movement of the driving piece 5 can also be driven by the elastic force of the elastic member one 13 or the artificial lifting force, so that the limiting can be completed before hoisting without the action of the gravity during hoisting, thereby further improving the stability.

[0065] When hoisting and disassembling, the lifting block 702 is only needed to move downward to separate the limiting block 701 from the limiting groove 12, at which time the baffle 6 reverses to the initial state under the action of the elastic force, thereby immediately releasing the limiting of the vertical direction of the assembly 4; then the whole lifting tool is moved downward, the driving piece 5 moves upward under the action of the elastic force, and the transmission block 902 is retracted under the pressing of the rotating roller 901, and when it moves upward to the starting end (a point) of the transmission groove 10, Figure 8 at which time the transmission block 902 is popped out under the action of the elastic force and continues to cooperate with the transmission groove 10, so that the whole lifting tool can return to the initial state.

[0066] Finally, it needs to be explained that the present lifting appliance adopts a pure mechanical structure, and the structure is basically located inside the lifting appliance, and the overall appearance looks simple and light. In the prior art, in order to achieve these functions, it may be necessary to install multiple electrical elements and driving components, and also need to set up complex structures such as lines and pipelines on the lifting appliance, which not only increases the overall weight of the lifting appliance, but also greatly increases the manufacturing cost and maintenance cost of the lifting appliance. The present lifting appliance does not need electrical elements and driving components, which not only reduces the overall weight of the lifting appliance, but also makes the use of the lifting appliance more safe and reliable, and the maintenance more simple and convenient. In addition, the operating handle 8 and the push block 702 of the limiting assembly 7 in the present application are concentrated near the supporting piece 3, which is easy to operate and convenient for precise movement and adjustment of the supporting piece 3, further improving the convenience and efficiency of operation.

[0067] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A lifting tool for processing automotive parts, characterized in that, include: Hanger; A support member is installed below the hanger via a hanger rod, and the support member has a support area for cooperating with the assembly. A driving component, which is vertically and elastically slidably mounted in the support area; A baffle, movably mounted on the support member and cooperating with the drive member via a transmission structure; and A limiting component is disposed on the support member and cooperates with the baffle. During hoisting and installation, the assembly in the support area is adapted to squeeze the driving member downward, thereby driving the baffle to move towards the support area through the transmission structure until it cooperates with the limiting component, so that the baffle is in a locked state and limits the assembly in the vertical direction. The baffle is horizontally and elastically mounted on the support member and located above the support area via a rotating shaft. The rotating shaft and the driving member are engaged through the transmission structure. After hoisting and installation, the transmission structure is in a disengaged state, at which time the driving member is adapted to buffer the impact force of the assembly through elasticity. During hoisting and disassembly, the limiting component is adapted to first unlock the baffle, so that the baffle rotates under the action of elasticity and moves away from the support area. Subsequently, the assembly separates from the driving member, and then the driving member moves upward and reset under the action of elasticity, so that the transmission structure is in the initial engaged state. The transmission structure includes a rotating roller and a transmission block. The rotating roller is mounted on the rotating shaft and has a spiral transmission groove on its exterior. The transmission block is elastically slidably mounted on the driving member and engages with the transmission groove. During hoisting and installation, the driving member is adapted to drive the baffle to rotate towards the support area through the engagement of the transmission block and the transmission groove. After hoisting and installation, the transmission block is adapted to disengage from the transmission groove, at which point the baffle is adapted to be locked by the limiting component. After hoisting and disassembly, the transmission block is adapted to move upward under the drive of the driving member until it engages with the starting end of the transmission groove.

2. The lifting tool for processing automotive parts as described in claim 1, characterized in that: The outside of the rotating roller is provided with a vertical groove that mates with the starting end of the transmission groove, and the depth of the vertical groove is less than the depth of the transmission groove; after hoisting and disassembly, the transmission block is adapted to move vertically upward along the vertical groove until it is engaged in the transmission groove.

3. The lifting tool for processing automotive parts as described in claim 1 or 2, characterized in that: The limiting component includes a wedge-shaped limiting block, which is vertically and elastically slidably disposed on the side of the support member. The baffle has a limiting groove. When the baffle is locked, the limiting block is adapted to engage with the rotating baffle in a wedge-shaped pressing action and move downward until the limiting block moves upward under the action of elastic force and engages with the limiting groove.

4. The lifting tool for processing automotive parts as described in claim 1 or 2, characterized in that: The boom includes an outer cylinder and an inner rod. The outer cylinder is horizontally slidably mounted on the hanger via its top end and locked to the hanger via a limiting structure one. The inner rod is vertically slidably mounted inside the outer cylinder and locked to the outer cylinder via a limiting structure two. The support member is installed at the lower end of the inner rod. An operating handle is provided at the lower end of the inner rod. A transmission device is provided inside the boom. The input end of the transmission device is connected to the operating handle, and the output end of the transmission device is unidirectionally connected to the limiting structure one and the limiting structure two. When the operating handle performs a first action, the first limiting structure is adapted to release its lock with the hanger under the drive of the transmission device, while the second limiting structure remains locked. When the operating handle performs a second action, the second limiting structure is adapted to release its lock with the outer cylinder under the drive of the transmission device, while the first limiting structure remains locked.

5. The lifting tool for processing automotive parts as described in claim 4, characterized in that: The transmission device includes an upper rotating rod, a lower rotating rod, a transmission assembly one, and a transmission assembly two. The upper rotating rod is rotatably installed inside the outer cylinder and its top end is unidirectionally connected to the limiting structure one through the transmission assembly one. The lower rotating rod is rotatably installed inside the inner rod and its bottom end is connected to the operating handle. The middle part of the lower rotating rod is unidirectionally connected to the limiting structure two through the transmission assembly two. The bottom end of the upper rotating rod and the top end of the lower rotating rod are connected by a spline. When the operating handle is rotated in the first direction, the upper rotating rod is adapted to drive the limiting structure to release the lock on the outer cylinder through the transmission assembly one; when the operating handle is rotated in the second direction, the lower rotating rod is adapted to drive the limiting structure to release the lock on the inner rod through the transmission assembly two.

6. The lifting tool for processing automotive parts as described in claim 5, characterized in that: The limiting structure includes a locking block and multiple slots spaced apart at the bottom of the hanger. The locking block is vertically and elastically slidably disposed at the top of the outer cylinder. The transmission assembly includes a transmission cylinder and a guide block. The guide block is installed at the lower end of the locking block. The transmission cylinder is installed at the top of the upper rotating rod and has a guide groove inside that cooperates with the guide block. The guide groove includes a horizontal section and a spiral section that are connected to each other. When the operating handle is rotated in the first direction, the spiral segment cooperates with the guide block to drive the locking block to move down and separate from the locking groove, thereby releasing the lock on the outer cylinder; when the operating handle is rotated in the second direction, the horizontal segment cooperates with the guide block, thereby resetting the locking block and keeping it stationary.

7. The lifting tool for processing automotive parts as described in claim 6, characterized in that: The second limiting structure includes a second locking block and multiple second locking slots disposed on the inner sidewall of the outer cylinder. The second locking block is horizontally and elastically slidably mounted on the top of the inner rod. The second transmission assembly includes a transmission disc and a transmission rod. The outer side of the transmission disc is provided with an arc-shaped groove. The transmission rod is installed on the second locking block and cooperates with the arc-shaped groove. The middle part of the transmission disc is provided with a sleeve hole that cooperates with the lower rotating rod. The sleeve hole is provided with a groove along the circumferential direction. The outer side of the lower rotating rod is provided with a drive block that cooperates with the groove. When the operating handle is rotated in the second direction, the drive block abuts against the end of the groove to drive the transmission disc to rotate synchronously. Then, the arc-shaped groove and the transmission rod cooperate to pull the second locking block to move and separate from the second locking groove, thereby releasing the lock on the inner rod. When the operating handle is rotated in the first direction, the drive block moves along the extension direction of the groove, and then the second locking block resets and remains stationary.

8. The lifting tool for processing automotive parts as described in claim 7, characterized in that: The inner rod and the outer cylinder are connected by an elastic element; when the inner rod is unlocked, the inner rod is adapted to be adjusted vertically in conjunction with the elastic element. The operating handle is connected to the inner rod by an elastic element two. After adjustment, the operating handle is adapted to return to and maintain its initial state under the action of the elastic element two. At this time, both the limiting structure one and the limiting structure two remain locked.

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